Per leonard stenman



hlaxtfll ICL'IQEZS. 1

P.L.$TENMAN I SPANNING COUPLE FOR LOGS AND EI'HE LIKE ed y 5, 1923 avwwtoz March 10, 1925.

P. L. STENMAN 'SPANNING COUPLE FOR 1.06s AND THE LIKE I Filed uay 5, 1923 v 2 Sheets-sheaf 2 P Lennard Ski- IM! l vsu'iti; y B Mb (A Attorney.

Patented Mar. 10, 1925.

PER LEONARD STENMA'N, or STOCKHOLM, SWEDEN.

Parson:

srnnmnor 'oonfnn Iron mamas was LIKE.

Application flied m 3,

To all whom it may concern: 7 Be it known thateLi- P-nn LEONARD STEN- rrAny a subject oftthe Kingi-otrsweden, director, residing: iatB Stockholm Sweden, has inventedr certain new and: useful: improvements inwSpanning Gouplesdfor Logs and the" :like, oft which the' following is;v specifi- OittlKDIl; #1:; 1. billy: o r;; 11; My invention relates to spanning con-- ples, andwmoreparticularly toe'the type used in connection with the logging industry.- o Tlre objcctof myainvention is; to: provide a 1 means for securely .:holding together... the opposite endi portions of aschain extending 15 around a log .oribinding togetheraa group of logs. The; means:.gcomprisestwo;relatively: movableuparts' :engaging :with each other-bymeans ofiaisetlof teeth andaa ratchet arrangement, these 1 parts being. attached to therends of the chainna- 1mm: 1: 1 In the'vaccompanying drawings,- Fig. 1 is a cross section;..thnough theocentervlineof Fig: 12w Fig; Qis auplan iviewoof my device, in whichathe: ratchet and teeth aresnot shown; Fig. 3 is arplanviewrof the ratchet member. :.Fig. 4 is auplantviewlxof another form of ratchetnnenrber. .iFigz-b is. aside lelevation' ofzlanother :form of my invention. Fig. 6 is a plan view of the same, with-one memberuomittedu Fig. '71 1852b. plan; view of still 1211101111615 form of ratchet memben n- Referringito fiigsnl and:2,v1;represents a metal. "l strap: IZsubstant-ially rectangular in j cross section l and, bent slightly concave. :Nearone end .5011 the convex-side is a transverse groove 1; adaptedvto; engage the end linkro'f-a chain around a log: A lip 1? is provided adjacentflthis groove; which lip zma y be hammered down'after thcHli-nk has 40 beeni inserted; thereby;- insuring a firm 1coninectionnbetweenn'the chainmnd the strap. Onitheinnder or concave side of-zthis strap are-a plurality of transverse teeth 3 adapted :;to engage with a ratchetmember 15., a This i ratchet memberzis substantially flat and rectangular :as-.-shown in Fig. 4. (The itypew'illnstrated in engagement with teeth 8 "in Figulwhas' twoxrectangnlar recesses cut outl of two-10f its opposite edges,,-(as in Fig. Blythe: purpose of. which will vbenhereinafter described. -One ofthe other two edges of. uthissmember is slightlybent and tapered so V V provided on the upper face of the fiat body ias ;to. fit-into close engagement WltllvOllG of 1523. Serial n6. 636,324;

the teeth 3. The opposite edge fits into a groove 14in'n1e bsr-2 This member 2; is the other of the two re atively mo e. mem ers o mutual cooperationi-rconstitu tes any invention. In

plan view its shape resembles a vletter H Wltll a'.:.relat1vely wlde. transverse member.

A. 1elatively fiat ;-bo dy; piortion constitn-tes this transversemember of. the H. --One edge off this body portion bends at right angles to form a-loop 7 adaptedto embrace the fo-i'rwardi portion otstrap 1,, and to .hold it substantially parallel'to the memberfl. 4. The

two legs of the -H adjacent this loop are bent upward ,in the same direction ,as the loop 7 to form two circular eyes 8 These eyes are adapted t to engage the inwardly projecting shanks of a. suitably tormed link member 10,, substantially;N-shaped. The narrowed end of this linknnember is 1 adapted .to. en-

gage and hold tight the other end, ofithe chain around the log 11) The other end -}of-.;th e body portion of the memberl-2l is formed into a-relatively thick channeljportion on the sameside as theiloopj of which A? is the base of;v the, channel and the two ears 4; they sides of thech annel Thestrap 1 rests, -and ;.move's longitudinallythis channel, the ears 4 serving toskeep it win galigmnent; The legs of; the H acent this ,channel portion are bent in rtheiopposite di- -rection to form sharp projections Qiwhich serve tov bite into the log; and hold the mem- -;ber '2 stationary with respect thereto At the base of the inside .face of the channel portion-is a'transverse groove 14 adapted to receive and sup-portthe edge 17 of the ratchet member 154 This; ratchet member, ex-

tending between this groove and one oflthe -teethon the.;.,under side oi; strap ltserves in this wayas a strut, keeping the strap 1 in a tight overlapped position relative to mem- To keep this ratchet member in engagement with the teeth, a slightly bent spring 18, transverselydisposed in the right angle vformed between theflat body portion of membenEZ and the loop 7,lexerts an upward pressure upon the underside of the ratchet member. To prevent the latter from fallingioutof the groove let when thespanning couple is ;loosened,,projections or lugs 5 are portion of member 2. These lugs 5 are designed to engage the recesses formed in the edges of the ratchet member 15.

I prefer also to provide a third projection 5 as shown only in Fig. 2, between the two projections 5, adapted to engage a third recess in the ratchet member 15, this recess comprising a rectangular hole located between the recesses mentioned before. A ratchet member of this design is illustrated in Fig. 3. If it is desired, the two projections or lugs 5 can be dispensed with and the projection 5 used alone, in which case a ratchet member such as illustrated in Fig. 4 would be suitable. The projection 5 serves also to hold the spring 18 in position.

An upwardly turned lip 2' on the foremostedge of strap 1 serves to facilitate the inserting of strap 1 underneath the loop 7 of member 2. In operation, the strap 1 is first thus inserted and caused to overlap the member 2 as much as possible. By a series of hammer blows directed in a forward direction upon the rear end of strap 1, this overlapping will increase and the ratchet member in cooperation with the teeth will retain the members in such new overlapped position. This relative motion of members 1 and 2 will evidently tighten the'grip of the chain upon the log or logs.

The spring 18 may be made V-shaped as illustrated in Figs. 5 and 6. One end rests against the base of the loop 7, the pointed edge rests in a notch or depression adjacent the stops 5 and the other end presses upward against the ratchet member 15. The depression 19 can be made of a width equal to that of the spring, so that the latter has a firm setting between the sides (21, 22) of this depression.

Figs. 5 and 6 illustrate an embodiment of my invention in which the strap 1 has not been bent but is substantially straight. The thick portion l of member 2 is not in the form of a channel but serves merely to limit the motion of strap 1 toward the member 2, the ears i being omitted. The ratchet member is illustrated separately in Fig. 7 and is substantially the same as the one illustrated in Fig. 3, except that the rectangular hole for a possible projection 5 has been omitted, and the edge 16 adapted to engage the teeth 3 has been more substantially bent upward toward these teeth. The link member 10 is also slightly different in design, the shanks thereof extending outward through the eyes 8 of the member 2 and being then bent to form two additional laterally disposed eyes adapted to engage the end links of other chains.

Vhat I claim is- 1. A spanning couple of the character described, comprising two relatively movable members adapted to engage portions of a chain, and means for holding said members in an overlapped position, a portion of one of said members being a loop adapted to embrace the other of said members to hold said members substantially in relative position, and the end of said other member being a lip designed to facilitate the insertion and removal of said other member relative to said loop. I

2. A spanning couple of the character described, comprising two relatively movable members adapted to engage portions of a chain, and means for holding said members in an overlapped position, a portion of one of said members being a loop adapted to embrace the second of said members to hold said members substantially in relative position, and another portion of said first named member being a channel the sides of which are adapted to guide the second of said members and substantially limit the motion of the latter to a relatively longitudinal direction.

3. A spanning couple of the character described, comprising two relatively movable members adapted to engage portions of a chain, and means for holding said members in an overlapped position, one of said members having outwardly disposed projections to bite into a log and hold said member stationary relative thereto.

4;. A spanning couple of the character described, comprising two relatively movable members adapted to engage portions of a chain, and means for holding said members in an overlapped position, one of said members having a transverse groove and an adjacent bendable lip, said groove being adapted to engage a link of a chain, and said lip to hold said link in engagement with said groove.

5. A spanning couple of the character described, comprising two relatively movable overlying members adapted to engage portions of a chain, the first of said members having a plurality of teeth on its inner side, and a rigid strut ratchet member interposed between said member and adapted to cooperate with said teeth to hold said mem bers in an overlapped position.

6. A spanning couple as claimed in claim 5, in which said ratchet member has at least one recess, and in which said second member has at least one lug designed to fit loosely into said recess to hold said ratchet member substantially in position when the latter is disengaged from said teeth.

7. A spanning couple, as claimed in claim 5, in which one end of said second member is a channel the sides of which are adapted to guide said first member and substantially limit the motion of the latter to a relatively longitudinal direction, and in which the other end of said second member is a loop embracing said toothed member, said channel portion having a transverse groove adapted to receive and support the unenname to this specification in the presence of gaged end of said ratchet member. two subscribing Witnesses.

8. A spannin couple as claimed in claim v I 5, including a detachable spring member PER LEONARD bFENMAN' 5 adapted to hold one end of said ratchet Witnesses:

member in engagement With said teeth. ERNST NORDLINDH,

In testimony whereof, I have signed my HANS PETTERSSON. 

